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(No Model.)

B.. SIMON.

METHOD 0F PRBPARING TEAMS POR SILK GOODS.

No. 308,526,.- Patented Nov. 25, 1884.

SS-i- UWITNBSSBS: y r n l 0R BY y ma m E? f? M ATTORNEYS N. PETERS. Pnmmhognph-r. wnmnguw. D. c.

Nrrnnf STATES PWR ROBERT SIMON, OF WEEHAWKEN, NEI/V JERSEY.

METHOD OF PREPARING TRAIVIS FOR -SILK GOODS.

SPECIFICATION forming part of Letters Patent No. 308,526, dated November 25, 1884.

Application filed February 9, 1884. (No model.)

To @ZZ whom it may concern.'

Be it known that I, ROBERT SIMON, of VVeehawken, county of Hudson, .and State of New Jersey, have invented certain new and useful Improvements in Methods of Preparing Trams for Silk Goods, of which the following is a specification.

Heretofore in weaving silk fabrics the tram or lling used was prepared by doubling two, three, and sometimes veven more raw silk threads, which together received a twist, in order to enable the winding of the tram thus formed onto bobbins after dyeing. After dyeingand winding, a number of the single tramthreads are again doubled together, according to the requirements of the goods to be produced. The liner the size of the single tranithreads which come to lie parallel, or nearly so, in each pick of the woven goods (to be made of a determined amount of tram) the more valuable the product, because the finest size of tram will produce the richest goods in touch and aspectthe two great qualities for which silk goods are so highly prized. The finer the tram-threads the greater is the difference in the cost Of working them after dyeing and the greater the waste made in operations preliminary to weaving. As the increase in value of the product in which these fine sizes are used does not correspond with the increase of cost of production, the finer grades of silk goods could not be successfully produced inthis count-ry, Owing to the high price of labor, but had to be imported.

The obj ect of this invention is to provide an improved method by which even the best qualities of silk goods, having both the softest and most pliable touch and the most natural luster attainable, can be manufactured at a greatly-reduced cost of production, and will have, when manufactured, a highly-improved appearance and the invention consists in the method of preparing trams for silk goods by doubling the entire number ofraw-silk threads required for the size of tram to be used for each pick., twisting them, and untwisting them after dyeing, whereby a tram of nearly parallel raw-silk threads is obtained.

In the accompanying drawings, Figure l represents a side view of a tram as used heretofore; Fig. 2, a diagram of my improved tram; and Fig. 3 is a diagram of a piece of silk fabric Woven with my improved tram, all the figures being magnified or drawn on an enlarged scale. 1

In carrying out my invention a number of raw-silk threads are first doubled on a bobbin to the required size of tram for the goods. They are then put on a throwing-mill, where the ordinary twist for tram is given. The s0- twisted tram is dyed, and after dyeing placed again on a throwing-mill, in which the throwing-spindles turn in a reverse direction to the rst twist, but which gives the same number of turns to the yard, or nearly so, as the first throwing-mill, so as to untwist the threads of the tram and produce a tram of raw silk threads lying parallel, or nearly so, to each other, as shown in Fig. 2. The tram is then wound on quills, which are placed in the loom-shuttles and used for the weft of the fabric, which receives thereby ahighly-improved, softer, and fuller appearance than usual, while considerable waste and expense are avoided.

Having thus described myinvention, I claim as new and desire to secure by Letters PatentrIhe method herein described of preparing trains for silk goods, which consists in doubling Ya number of raw-silk threads, twisting the doubled threads, dyeing the same, and untwisting said threads after dyeing, substantially as set-forth. e

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

ROB. SIMON.

Vitn esses z JOHN CUDOIs, FREDK. C. HANSEN. 

